Retain compatibility with RooFit prior to ROOT 6.28

[guitargeek]

Follows up on d52fed9.

See also this commit in ROOT:
root-project/root@0f9b90a

Closes #44312.

[cmsbuild]

cms-bot internal usage

[cmsbuild]

+code-checks

Logs: https://cmssdt.cern.ch/SDT/code-checks/cms-sw-PR-44317/39337

• This PR adds an extra 20KB to repository

[cmsbuild]

A new Pull Request was created by @guitargeek for master.

It involves the following packages:

• PhysicsTools/TagAndProbe (analysis)

@cmsbuild, @tvami can you please review it and eventually sign? Thanks.
@sextonkennedy, @antoniovilela, @rappoccio you are the release manager for this.

cms-bot commands are listed here

[tvami]

@cmsbuild , please test

[tvami]

@cmsbuild , please test for CMSSW_14_1_ROOT626_X

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-159c2c/37910/summary.html
COMMIT: 369d0c4
CMSSW: CMSSW_14_1_ROOT626_X_2024-03-05-1100/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmssw/44317/37910/install.sh to create a dev area with all the needed externals and cmssw changes.

The following merge commits were also included on top of IB + this PR after doing git cms-merge-topic:

• @fwyzard Add missing newlines in DataFormats modules #44230
• @fwyzard Add missing newlines in GeneratorInterface modules #44237

You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-159c2c/37910/git-recent-commits.json
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-159c2c/37910/git-merge-result

Comparison Summary

Summary:

• You potentially added 93 lines to the logs
• Reco comparison results: 58 differences found in the comparisons
• DQMHistoTests: Total files compared: 49
• DQMHistoTests: Total histograms compared: 3342509
• DQMHistoTests: Total failures: 19724
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3322763
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 48 files compared)
• Checked 205 log files, 166 edm output root files, 49 DQM output files
• TriggerResults: no differences found

[cmsbuild]

+1

Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-159c2c/37909/summary.html
COMMIT: 369d0c4
CMSSW: CMSSW_14_1_X_2024-03-05-1100/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week1/cms-sw/cmssw/44317/37909/install.sh to create a dev area with all the needed externals and cmssw changes.

The following merge commits were also included on top of IB + this PR after doing git cms-merge-topic:

• @fwyzard Add missing newlines in DataFormats modules #44230
• @fwyzard Add missing newlines in GeneratorInterface modules #44237

You can see more details here:
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-159c2c/37909/git-recent-commits.json
https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-159c2c/37909/git-merge-result

Comparison Summary

Summary:

• You potentially added 85 lines to the logs
• Reco comparison results: 45 differences found in the comparisons
• DQMHistoTests: Total files compared: 49
• DQMHistoTests: Total histograms compared: 3342509
• DQMHistoTests: Total failures: 6
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3342481
• DQMHistoTests: Total skipped: 22
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 48 files compared)
• Checked 205 log files, 166 edm output root files, 49 DQM output files
• TriggerResults: no differences found

[tvami]

+1

• tests pass

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next master IBs (tests are also fine). This pull request will now be reviewed by the release team before it's merged. @sextonkennedy, @rappoccio, @antoniovilela (and backports should be raised in the release meeting by the corresponding L2)

[rappoccio]

+1